Crj-200 captain reported significant wake turbulence in trail of a B767 on arrival to iad.

Attributes
ACN	1118235
Time
Date	201309
Local Time Of Day	0001-0600
Place
Locale Reference	IAD.Airport
State Reference	DC
Environment
Light	Daylight
Aircraft 1
Make Model Name	Regional Jet 200 ER/LR (CRJ200)
Operating Under FAR Part	Part 121
Flight Phase	Descent
Route In Use	STAR HYPER 4
Flight Plan	IFR
Aircraft 2
Make Model Name	B767 Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Flight Phase	Descent
Route In Use	STAR HYPER 4
Person 1
Function	Pilot Not Flying Captain
Qualification	Flight Crew Air Transport Pilot (ATP)
Events
Anomaly	Inflight Event / Encounter Wake Vortex Encounter

Narrative:

On the hyper 4 arrival into iad; between the delro and binns intersection at 15;000 ft; nine miles behind a boeing 767; received significant wake turbulence causing significant rolls and yaws. [We] disconnected the autopilot to recover the aircraft. Asked ATC what we were following; and reported the wake encounter. We were given a descent; and allowed to slow as necessary. No further encounters experienced.

Original NASA ASRS Text

Title: CRJ-200 Captain reported significant wake turbulence in trail of a B767 on arrival to IAD.

Narrative: On the HYPER 4 arrival into IAD; between the DELRO and BINNS Intersection at 15;000 FT; nine miles behind a Boeing 767; received significant wake turbulence causing significant rolls and yaws. [We] disconnected the autopilot to recover the aircraft. Asked ATC what we were following; and reported the wake encounter. We were given a descent; and allowed to slow as necessary. No further encounters experienced.

Data retrieved from NASA's ASRS site as of July 2013 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.